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Quantitative comparison of commutation circuits for bridge inverters

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2 Author(s)
Davis, R.M. ; University of Nottingham, Department of Electrical Engineering, Nottingham, UK ; Melling, J.R.

The large number of published circuits for forced commutation inverters has created a selection problem for the user and designer. The cost of commutation components, with reference to rating, is often disregarded when selecting a particular circuit. The efficiency of the commutation circuit and its effect on the efficiency of the main circuit, is also often disregarded. The paper compares on a per unit basis the commutation, and powercircuit components, for five typical inverter circuits, and provides guidance on which configuration is likely to suit a particular application. While the comparison is restricted to a single-phase bridge invertor, results can frequently be extrapolated to polyphase circuits.

Published in:

Electrical Engineers, Proceedings of the Institution of  (Volume:124 ,  Issue: 3 )